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WESMAR 12&24 VDC MotorsThruster
Installation Manual
April 2013
Western Marine Electronics14120 NE 200th Street, Box 7201
Woodinville, WA 98072-4001 USAT: (425) 481-2296 / F: (425) 486-0909
Email: [email protected]: www.wesmar.com
INSTALLATION
Page 3WESMAR
Table of Contents
Introduction ............................................................................................ 4Motor Installation ................................................................................... 5Operation and Maintenance .......................................................................... 6Flexible Coupling Alignment ................................................................. 8Control Stations ............................................................................................ 912 VDC 5 HP Motor Solenoid and Control Station Wire Diagram ........... 1024-V Solenoid Junction Box Wiring for V1-10, V1-12, V2-8, V2-10 & V2-12 1124V Solenoid Junction Box Wiring ........................................................ 12Series Parallel Station ................................................................................... 13Series Parallel Switch Wiring Diagram ........................................................ 14Bow Thruster Motor Installation Alert & Warranty Disclaimer ........... 15Dimensional Information .......................................................................... 16Electric Bow Thruster Motor Parts List ............................................... 17Troubleshooting ............................................................................................ 19System Troubleshooting Notes ................................................................. 20
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Electric Thruster
IntroductionThis manual has been created as an aid to understand-ing WESMAR bow thrusters, and to provide some helpful tips. Use it only as a guide. Installations should be performed by a professional boat yard or a competent marine service yard.
One feature that distinguishes our bow thrusters from the competition is that all WESMAR drive legs are stainless steel, and a sacrificial zinc nut is installed on the propeller shaft to reduce electrolytic corrosion.
When you receive your WESMAR bow thruster mo-tor, you should find the following equipment:
• Electric motor assembly with solenoids (Fig.1)
• Control station, with switch assembly and faceplate
• Owner's manual
Figure 1: 24V Motor
INSTALLATION
Page 5WESMAR
Installation1. Place an 8D battery within 25 feet or closer to the
relay assembly to ensure sufficient latching current for the relay solenoid. 1 or 2 batteries depending on 12 or 24 VDC. This battery must be capable of handling the full current draw of the motor.
2. Use the vessel's system to charge the battery. Run the wiring from the motor through a breaker or fuse large enough to handle the maximum expect-ed current (Fig. 2).
3. Fuses are customer supplied. Examples: 24 VDC fuse NLN500 amp slow blow; 12 VDC fuse NLN400 amp slow blow.
4. Bolt the plastic motor isolator plate to the top of the tunnel.
5. Tape around the motor’s two end caps to keep them in place during installation.
6. Carefully remove the nuts and washers that keep the motor together and set them aside, the tape should prevent the motor from coming apart.
7. Insert the motor into the thruster mount and adjust until the coupler aligns and allows you to push it together (make sure that the motor couple insert is in place).
8. Rotate the motor until the bolts align with the isolator plate and then bolt the motor back together through the plate with the nuts and washers, at-taching the motor to the housing.
Model Power Source Power Input Fuse Motor RatingV2-7 Electric/12VDC 330 A 400 A 5 hpV2-8 Electric/12VDC 330 A 400 A 5 hpV2-8 Electric/24VDC 475A 500A 13.5 hpV2-10 Electric/24VDC 475 A 500 A 13.5 hpV2-12 Electric/24VDC 475 A 500 A 13.5 hp
Figure 2: Fuse holder, 400 A slow blow fuse, and 4/0 cable.
Table 3: Power requirements and fuse size.
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Electric Thruster
Operation and Main-tenance
WESMAR bow thrusters are hard working, power-ful units. Please keep in mind the following cautions when operating your unit.
Electric WESMAR thrusters have a thermal cutoff switch that will cause shut down when the motor reaches approximately 170 degrees fahrenheit (Fig. 3, 4). Once this happens, there will be a 15 - 20 minute cool off period during which the system is not opera-tional.
Apply no more than 40 seconds of continuous thrust. This is a recommended duty cycle, however most systems can be run for longer periods before the ther-mal cut-off switch activates. If you require longer run cycles, please consider hydraulic or DC Pro thrusters.
Maintenance
The WESMAR bow thrusters are low-maintenance systems that require only occasional routine servicing. When looking over your thruster, check the following:
• Examine the oil level in the bottom gear pod. If low, fill with SAE 90W gear oil.
• Check the zinc bolt and nut on the end of the pro-peller shaft for electrolytic corrosion.
• Examine breakers and/or fusing system.
• Keep battery supply fully charged.
• Oil reservoir: fill 3/4 full with 90 wt gear oil.
Couplings
V6, V7 and V8 series couplings are custom made at WESMAR with Lovejoy L-75 inserts. V10 and V12 series thrusters use Reuland R3 series couplings (Fig. 5). Before ordering couplings, recheck shaft diameters and measure key ways.
Couplers have two set screws in each threaded hole. The inner set screw must be tight against the key, and
Figure 4: 24 VDC thermal switch shipped with V2-8, V2-10, and V2-12 products - customer installed on
13.5 HP motor.
Thermo Switch
Motor Output
Insert
Input Shaft
Figure 3: Thermo switch and solenoid location on 5HP 12 VDC Motor.
Figure 5: Motor Couplings
Solenoids
INSTALLATION
Page 7WESMAR
the outer set screw must be tight against the inner set screw to prevent the inner set screw from backing out.Use LocTite to help secure the set screws.
Replacement of Seals
Replace the thruster output shaft seals every 3 - 5 years under normal conditions of operation. Seals are housed within the seal retainer cap. Place seals back to back: one to hold the gear oil in and one to keep the sea water out (Fig. 8).
Extending the Life of a Solenoid
Once you start experiencing trouble with solenoids, you are encouraged to replace the bad solenoid as soon as possible (Fig. 9). To extend the life of the solenoid, follow these procedures:1. Disconnect battery.
2. Remove 3 top nuts and top of bad solenoid
3. Remove locking nut.
4. Take washer and flip over.
5. Put locking nut back on.
6. Replace and rescrew or rotate washer 45 degree.
Figure 7: 5/8 zinc nut size B fits all 12/24 VDC thrusters.
Figure 6: Kaplan Propeller
Figure 8: Lip seals and seal retainer
Internal coil with spring and washer
12 or 24 VDC solenoid ar-rangement
3 top nutsLocking nut
Washer
Figure 9: Solenoids
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Electric Thruster
The provided shaft couplings have two setscrews in them each. One of these is aligned with the bore keyway. This setscrew must be tightened down against the key of the given shaft. Align the coupler halves such that both shafts have setscrews set against their respective keys and that the coupler halves firmly together about the hytrel insert. If a setscrew cannot be driven into its appropriate shaft key then the shaft and coupler alignments must be adjusted to correct this (Fig 10, 11).
Note: all setscrews must be tightened down prior to thruster operation.
Figure 10: Improper shaft alignment prevents proper setting of setscrew against shaft key.
Figure 11: Shaft re-aligned to facilitate proper setting of setscrew against shaft key.
Flexible Coupling Alignment
INSTALLATION
Page 9WESMAR
Control Stations
Figure 12: Joystick Switch Dimensions
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Electric Thruster
12 VDC 5 HP Motor Solenoid and Control Station Wiring Diagram
Isolated ground
Directional control terminal
(port/stab)
Directional control terminal (port/stab)
12 VDC ships power lug
Solenoids
Figure 13: 12 VDC motor and solendoid control station diagram.
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Electric Thruster
24V Solenoid Junction Box Wiring V2-8, V2-10 & V2-12 Systems
NOTE: Install 10Amp AGC fuse or 10Amp circuit breaker on 24VDC supply line to bow thruster switch.This is based on 8 Ohm primary coil of solenoid.
Figure 15: Solenoid Junction Box Wiring Diagram
INSTALLATION
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Series Parallel Station
The series parallel switch requires a diode block kit. Contact WESMAR if supplying your own series paral-lel switch.
13.5 HP RELAY PANEL
• Available with 12 or 24 VDC relays.• 12 volt relays and diode block for series parallel
operation and 12 volt charging.• 24 VDC relays for 24 volt charging systems.
Ship's powerS
S1
S2
For series parallel operation. This wire is moved to terminal strip. See drawing.
Ship's ground
Relay
Diode block location for series parallel
operation.
Inspection tag
J-box: place within 10 feet of batteries to minimize current loss on cable run. Low current can cause damage to
solenoids.
Figure 16: Relay
Figure 17: 13.5 HP Relay Panel
INSTALLATION
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WARNING: WHEN WIRING THE ELECTRIC BOW THRUSTER MOTOR INTO THE SHIP'S ELEC-TRICAL SYSTEM, THE FOLLOWING ACTIONS MUST BE TAKEN:
When tightening the hex nuts, hold the back nut with a separate wrench to make sure the back nut does not turn. If back nut turns, serious damage will occur, voiding WESMAR's warranty on the electric motor (Fig. 31).
Bow Thruster Motor Installation Alert & Warranty Disclaimer
Please follow this method on each motor stud.
Figure 18: Bow Thruster Motor Installation Diagrams
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Electric Thruster
Dimensional Information:Vortex Dual Prop Bow Thruster Specifica-
tions
Model V2-7M V2-8 (5HP) V2-8 (13HP) V2-10M V2-12A 15.21" (386mm) 11.96" (304mm) 14.41" (366mm) 15.21" (386mm) 16.92" (430mm)B 15.90" (404mm) 16.12" (409mm) 16.12" (409mm) 15.92" (404mm) 16.58" (421mm)C 6.25" (159mm) 8.51" (216mm) 8.51" (216mm) 7.79" (198mm) 7.13" (181mm)
Prop 7.07" (180mm) 7.75" (197mm) 7.75" (197mm) 9.50" (241mm) 12.25" (311mm)Boat Size 20-35' (6-10m) 25-48' (7-15m) 40-55' (12-17m) 45-60' (14-18m) 50-78' (15-24m)
Table 4: Bow Thruster Dimensions
Figure 19: Bow Thruster Dimensions
INSTALLATION
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Electric Bow Thruster Motor Parts List
Common 24 Volt Motor Replacement Part List
52.71017.0 End Terminal
95.07016.0 Brush
95.02601.0 Thrust Bearing
95.02664.0 Needle Bearing 95.00046.0 Oil Seal
57.00582.0 Brush Holder
95.10413.0 Wave Washer
95.31604.0 Ground Strap
61.08543.0 Armature
09.02007.0 Side Pole Insulator (Interior)
41.00009.0 Field Coil
49.02011.0 24v Solenoid
61.08166.0 Base Plate
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Electric Thruster
FILL OUT THIS FORM AND FAX TO WESMAR SERVICEAT 425-486-0909 BEFORE ANY ITEMS WILL BE ACCEPTED
FOR EXCHANGE.
COMPANY NAME
1. What voltage is the bow thruster?
2. Do you have a series-parallel switch?
3. What type of battery is used?
4. What is voltage at the battery?
5. What gauge cable is used from battery to relay panel?
6. What length is cable from battery to relay panel?
7. What gauge cable is used from relay panel to motor?
8. What length cable is used from relay panel to motor?
9. What is the voltage at the relay panel?
10. What is the voltage at the series-parallel switch?
11. What is the voltage at motor S1?
12. What is the voltage at motor S2?
13. What is the current draw at the motor?
14. What is the voltage at the control switch?
SERVICE: PRIOR TO SERVICE, PLEASE REVIEW BELOW. NEW INSTALL CHECKLISTFOR DC ELECTRIC BOW THRUSTER
INSTALLATION
Page 19WESMAR
Troubleshooting
Electric System• Solenoid sticks operation one direction only:
Flip internal washer on the solenoid or replace solenoids.
• Low battery:
Charge or replace battery.
• Broken control or terminal:
Check wiring on the control stations and sole-noids.
• Bad series parallel switch:
No charging to 12 volt batteries. Replace series parallel switch.
• Motor doesn't operate, no thrust:
Reinstall prop, check zinc nut assembly. Be sure to pin the nut to the shaft. Low battery, motor brushes low, bad motor.
• Motor operates, no thrust:
Coupling has slipped down shaft. Check inside the motor adapter and reset the set screws on the coupling. Broken output shaft on motor.
• Solenoids chatter:
Insufficient latching current due to long cable run between batteries and junction box, or insufficiently charged battery.
Figure 20: Solenoid